Does your supportive mental health advocate understand that if your ex-t isn't in his old job and decides to see you outside of that arrangement he may well be in breach of his contract if employment and could face complaint and sanction by his old employer? Do they understand that if your T were to see you outwith his old workplace as part of a private service provision that someone would need to pay your ex-t for sessions he spends with you, or he would be open to complaint or sanction for continuing to see you informally not as part of therapy. Basically this guy is in a catch 22, whatever he does here someone - you, his old employer - could legitimately complain about it so the threat of complaint from you may just not matter that much. In fact his old employer may already be undertaking their own disciplinary investigation into his work with you, or have submitted a complaint to his registering body. His therapy with you was unethical all the way through, the ending is just the tip of the iceberg.

I guess what I'm saying is he may not care about whether you complain or not because someone else has got there already, if they have, part of any disciplinary process would mean he couldn't have any contact with you. So, he doesn't need to be dead, or in a coma (what a bizarrely unprofessional thing for a professional to say about a fellow professional) to legitimately not reply or have contact with you.

Your mental health advocate can say what they like here, they aren't in possession of all of the facts either so actually can't say what his motives are - there are many reasons why he won't or can't respond to you that have got nothing st all to do with his clinical responsibility or lack thereof and everything to do with him being employed under contract, with terms that usually prohibit personal communication with clients, or being under disciplinary or complaint which means he'd be in even more trouble if he had contact with you.

Of course he may just be ignoring you, in which case you may as well go through the complaint process and have done. Sooner started, sooner finished.